[질문] 역곡역용산급행시간

토요일 시간 4시 40분기준 16:50,17:01,17:13,17:27,17:40,17:52,18:04,18:17,18:28,18:42,18:55,19:07,19:17,19:27,19:36,19:49,20:02,20:16,20:25,20:39,20:53